<p dir="ltr">On Sep 4, 2015 9:15 AM, "John Clark" <<a href="mailto:johnkclark@gmail.com">johnkclark@gmail.com</a>> wrote:<br>
> Yes this all sounds ridiculous but you can confirm that it's the way nature actually works if you happen to have 3 pairs of polarizing sunglasses. Set 2 of them up at right angles and no light gets through, but place a third pair set at 45 degrees between the two and light does get through. </p>
<p dir="ltr">I've actually done that experiment. The key is, the photons are affected by that intervening set of sunglasses. You have to appreciate what photons are to fully understand how this works, and why it does not map back to your two-clock example.</p>
<p dir="ltr">(Hint 1: "polarized" does not mean a photon only exists in that direction and has no representation in any other, including others nonorthogonal to that one. Photons are vectors, not numbers, and vectors with nonzero lengths can always be broken down into at least two orthogonal vectors, where those "child" vectors are at angles greater than 0 but less than 90 to the "parent" vector.)</p>
<p dir="ltr">(Hint 2: photons are analog, but those clocks are digital.)</p>